KTM 250 SX-F 2005, Repair Manual

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Repair manual KTM 250 SX-F
Art.-No. 3.206.027-E
Left casing half
Remove all shaft seal rings and the bearing fixing screws, heat the
casing half in the oven to approx. 150° C.
– Roller bearing for the crankshaft
1
Press in the roller bearing from the outside with a suitable driver.
Press in a new roller bearing from the inside up to the stop.
– Grooved ball bearing for the main shaft
2
Press in a grooved ball bearing from the outside with a suitable
driver. Press in a new grooved ball bearing from the inside up to the
stop.
– Grooved ball bearing for the countershaft
3
Press in the grooved ball bearing with a suitable driver from the
outside. Press in a new bearing from the inside up to the stop.
– Needle bearing for the shift shaft
4
Press in the needle bearing from the outside. Press in a new needle
bearing from the inside until flush.
– Shaft seal ring for the crankshaft
5
– Press in a new shaft seal ring from the outside (open side on the
inside)until flush.
– Shaft seal ring for the countershaft
6
Press in a new shaft seal ring from the outside (open side on the
inside) until flush.
– Shaft seal ring for the shift shaft
7
Press in a new shaft seal ring from the outside (open side on the
inside) until flush.
– When the casing half has cooled, check the bearings for a tight fit.
– Make sure there are no score marks or seizing marks on the oil
pump housing.
– Blow compressed air through all oil ducts and make sure they are
not clogged.
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